Hi Niklas,
Thank you for the review.
On Tue, May 12, 2020 at 11:26 PM Niklas <niklas.soderlund@xxxxxxxxxxxx> wrote:
>
> Hi Lad,
>
> Thanks for your work.
>
> On 2020-04-15 11:19:06 +0100, Lad Prabhakar wrote:
> > Up until now the VIN was capable to convert any of its supported input mbus
> > formats to any of it's supported output pixel formats. With the addition of
> > RAW formats this is no longer true.
>
> Add blank line.
>
> > This patch invalidates the pipeline by adding a check if given vin input
> > format can be converted to supported output pixel format.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> I like this patch I think there is a typo bellow and patch [1] have been
> merged in the media-tree which unfortunately addes one more thing to do
> in this patch. In rvin_enum_fmt_vid_cap() there is a TODO noted for what
> needs to be done. In imagine the fix is simple and the end result would
> look something like this.
>
> switch (f->mbus_code) {
> case 0:
> case MEDIA_BUS_FMT_YUYV8_1X16:
> case MEDIA_BUS_FMT_UYVY8_1X16:
> case MEDIA_BUS_FMT_UYVY8_2X8:
> case MEDIA_BUS_FMT_UYVY10_2X10:
> case MEDIA_BUS_FMT_RGB888_1X24:
> break;
> case MEDIA_BUS_FMT_SRGGB8_1X8:
> if (f->index)
> return -EINVAL;
>
> f->pixelformat = V4L2_PIX_FMT_SRGGB8;
> return 0;
> case default:
> return -EINVAL;
> }
>
> 1. d5f74a1eff9aef3b ("media: rcar-vin: Make use of V4L2_CAP_IO_MC")
>
Sure Ill take of care of this and just repost this patch is that OK with you ?
> > ---
> > drivers/media/platform/rcar-vin/rcar-dma.c | 6 +++++-
> > 1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c
> > index 1a30cd036371..48bd9bfc3948 100644
> > --- a/drivers/media/platform/rcar-vin/rcar-dma.c
> > +++ b/drivers/media/platform/rcar-vin/rcar-dma.c
> > @@ -1109,13 +1109,17 @@ static int rvin_mc_validate_format(struct rvin_dev *vin, struct v4l2_subdev *sd,
> > case MEDIA_BUS_FMT_UYVY8_1X16:
> > case MEDIA_BUS_FMT_UYVY8_2X8:
> > case MEDIA_BUS_FMT_UYVY10_2X10:
> > + break;
> > case MEDIA_BUS_FMT_RGB888_1X24:
> > - vin->mbus_code = fmt.format.code;
>
> This is not right is it?
>
> Should you not add a case for MEDIA_BUS_FMT_SRGGB8_1X8 instead of taking
> over MEDIA_BUS_FMT_RGB888_1X24?
>
Agreed, I blindly took this suggestion from your previous comments [1].
[1] https://lkml.org/lkml/2020/3/19/858
Cheers,
--Prabhakar Lad
> > + if (vin->format.pixelformat != V4L2_PIX_FMT_SRGGB8)
> > + return -EPIPE;
> > break;
> > default:
> > return -EPIPE;
> > }
> >
> > + vin->mbus_code = fmt.format.code;
> > +
> > switch (fmt.format.field) {
> > case V4L2_FIELD_TOP:
> > case V4L2_FIELD_BOTTOM:
> > --
> > 2.20.1
> >
>
> --
> Regards,
> Niklas Söderlund
